.content_inf{
    width: 100%;
    position: relative;
    margin: 40px 0px 80px;
}
aside{
    width: 200px;
    height: 340px;
    border: 1px solid rgb(1,161,255);
    box-sizing: border-box;
    position: absolute;
    top: 9px;
    left: 10%;
    z-index: 999;
}
article{
    width: 100%;
    /* margin: 40px 0px 80px; */
}
.about_us{
    box-sizing: content-box;
    width: 100%;
    height: 110px;
    background-color: rgb(1,161,255);
    color: #fff;
    text-align: center;
    position: relative;
    /* margin-top: -1px; */
    /* border-left: 1px solid rgb(1,161,255); */
    /* border-right: 1px solid rgb(1,161,255); */

}
.about_us h2{
    font: 28px/2.5em 黑体;
}
.about_us h2::after{
    content: "";
    display: block;
    width: 25px;
    background-color: #fff;
    height: 3px;
    position: absolute;
    left: 50%;
    margin-left: -18px;
    margin-top: -14px ;
}
.about_nav ul{
    margin-top: -5px;
    background-color: white;
}
.about_nav li{
    width: 170px;
    height: 30px;
    /* background-color: rgb(1,161,255); */
    margin: 15px auto;
    text-align: center;
    line-height: 30px;
    border-radius: 12px;
}
.about_nav li span{
    font-size: 20px;
    margin-right: 5px;
}
.about_nav li:hover{
    background-color: rgb(1,161,255);
}
.about_nav li:hover a{
    color: white;
}
.on_3{
    background-color: rgb(1,161,255);
}
.on_3 a{
    color: white;
}
.about_nav li a{
    font: 18px/20px "SourceHanSansCN";
}
.content_details{
    width: 60%;
    box-sizing: border-box;
    /* border: 1px solid black; */
    margin-left: auto;
    margin-right: 13%;
}
.content_details header{
    width: 100%;
    height: 45px;
    border-bottom:1px solid rgb(211,211,211) ;
    position: relative;
}
.content_details header h2{
    display: inline-block;
    height: 45px;
    font: 25px/1em "SourceHanSansCN",宋体;
    line-height: 45px;
    margin-left: 20px;
    font-weight: 900;
    position: relative;
}
.content_details header h2 span{
    font-weight: 900;
    font: 13px/1em "SourceHanSansCN",宋体;
}
.content_details header h2::before{
    content: "";
    display: inline-block;
    width: 4px;
    height: 30px;
    background-color: rgb(1,161,255);
    position: absolute;
    top: 7px;
    left: -8px;
}
.content_details header .content_daohang{
    width: 320px;
    display: inline-block;
    position: absolute;
    right: 10px;
    top: 18px;
    font: 14px/1em 宋体;
}
.content_details header .content_daohang a{
    font: 10px/1em 宋体;
}
.content_details header .content_daohang a:last-child{
    color: rgb(1,161,255);
}
.content_details section p{
    font: 14px/24px 宋体;
    color: rgb(102,102,102);
    text-indent: 2em;
}
.content_details section{
    width: 97%;
    overflow: hidden;
    margin: 0px auto;
}
.content_details section img{
    float: left;
    margin: 10px 10px 0px 0px;
}
.content_details section p{
    margin-top: 10px;
}

